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MONITORING WELL PURGING PROTOCOL <br /> ENICON MEASURE AND RECORD DEPTH TO WATER <br /> ASSOCIATES AND WELL TOTAL DEPTH <br /> CHECK FOR FLOATING PRODUCT <br /> YES NO <br /> MEASURE AND DOCUMENT CALCULATE PURGE VOLUME BY <br /> FLOATING PRODUCT THICKNESS. USING THE FOLLOWING EQUATION <br /> 00 NOT SAMPLE WELL FOR <br /> DISSOLVED CONSTITUENT'S. P- a r Z h x 7 48 x 3 <br /> where: <br /> P = calcuiated purge volume Igadonsl <br /> T7 - 3.14 <br /> r = radius at weii casino in teet <br /> h = heigrtt at water cotumrt in Leet <br /> EVACUATE WATER FROM WELL EQUAL M <br /> WELL EVACUATED TO PRACTYCAi. LLIAIT THE CALCULATED PURGE VOLUME WHILE <br /> OF DRYNESS BEFORE REMOVING MONITORING GROUNCI-WATER STABILIZATION <br /> CALCULATED PURGE VOLUME INDICATOR PARAMETERS(pH. CONDUCTruM. <br /> TEMPERATURE)ANO TURBIDITY AT INTERVALS <br /> OF ONE CASING VOLUME <br /> NO <br /> YES <br /> FINAL TWO SETS OF GROUND-WATER <br /> STABILIZATION INDICATOR PARAMETER <br /> MEASUREMENTS MEET THE FOLLOWING WELL RECHARGES TO A LEVEL <br /> CRnMRIA. SUFFICIENT FOR SAMPLE <br /> PH - t 0.1 PH emits COLLECTION WITHIN 24 HOURS <br /> COND - t 10% OF EVACUATION TO DRYNESS. <br /> TEMP = 1 (1 'F <br /> YES NO Np <br /> FIELD TEST FIRST RECORD WELL <br /> WELL PURGING CONTINUE PURGING; RECHARGE WATER FOR AS DRY FOR <br /> CRITERIA MET; EVACUATE ADDITIONAL INDICATOR PARAMETERS PURPOSES OF <br /> PROCEED TO CASING VOLUME OF AND TURBIOnY.THEN SAMPLING <br /> WELL SAMPLING WATER. MONITORING PROCEED TO WELL <br /> INDICATOR PARAMETERS SAMPLING <br /> FOR STABILITY <br /> EMCON <br /> Associates MONITORING WELL PURCING PROTOCOL [ Afti <br />